(19)
(11) EP 0 506 105 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.12.1992 Bulletin 1992/51

(43) Date of publication A2:
30.09.1992 Bulletin 1992/40

(21) Application number: 92105339.3

(22) Date of filing: 27.03.1992
(51) International Patent Classification (IPC)5: C08L 27/12, C08L 27/16, C08K 5/14, C08L 21/00
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 27.03.1991 JP 62923/91

(71) Applicant: DAIKIN INDUSTRIES, LTD.
Kita-ku, Osaka 530 (JP)

(72) Inventors:
  • Suyama, Shuji
    Taketoyo-cho, Chita-gun, Aichi-ken (JP)
  • Ishigaki, Hideyo
    Agui-cho, Chita-gun, Aichi-ken (JP)
  • Tomoda, Masayasu, c/o Yodogawa Works of
    Settsu-shi, Osaka-fu (JP)
  • Shirai, Yoshihiro, c/o Yodogawa Works of
    Settsu-shi, Osaka-fu (JP)
  • Tanaka, Hiroyuki, c/o Yodogawa Works of
    Settsu-shi, Osaka-fu (JP)
  • Komai, Masaharu, c/o Yodogawa Works of
    Settsu-shi, Osaka-fu (JP)

(74) Representative: Hansen, Bernd, Dr. Dipl.-Chem. et al
Hoffmann, Eitle & Partner Patent- und Rechtsanwälte, Postfach 81 04 20
81904 München
81904 München (DE)


(56) References cited: : 
   
       


    (54) Vulcanizable rubber composition


    (57) A vulcanizable rubber composition which contains an iodine- or bromine-containing rubber and an organic peroxide of the formula:


    wherein R¹ is a hydrogen atom, a chlorine atom or methyl group, R² is a linear or branched alkyl group having 2 to 5 carbon atoms, and n is an integer of 1 to 3, generates only a small amount of methyl iodide or methyl bromide during the vulcanization.





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